Harlem is a 1943 Italian sports crime film directed by Carmine Gallone and starring Massimo Girotti, Amedeo Nazzari and Vivi Gioi. It was shot at the Cinecittà Studios in Rome. The film's sets were designed by the art director Guido Fiorini. The former world heavyweight champion Primo Carnera appears in a small role. It is also known by the alternative title of Knock Out. It is noted for its anti-Americanism at a time when the two countries were at war. In postwar re-releases, Amedeo's final line was redubbed with a more positive view on life in the United States.